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Finding the Fourth Proportional to 547,462.10, 821,193.15 and 173,485.10

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Solution

The fourth proportional to 547,462.10, 821,193.15 and 173,485.10 is: 260,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,462.10 : 821,193.15 = 173,485.10 : x
  2. Step 2: Convert to fraction form
    547,462.10/821,193.15 = 173,485.10/x
  3. Step 3: Cross multiply
    547,462.10x = 821,193.15 × 173,485.10
  4. Step 4: Simplify right side
    547,462.10x = 142,464,775,747.07
  5. Step 5: Solve for x
    x = 142,464,775,747.07/547,462.10
  6. Step 6: Final answer
    x = 260,227.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.